Of buffalo grove



@einen tatrs @anni @ffice ISAAC J..PA'RKER,' OF BUFFALO VGROVE, IOWA.

Letters Patent lV'oe 80,364, dated July 28, 1868.

IMPROVBD rsNeE-rosr DRIVER.

' TOALL WHOM IT MAY CONCERN:

Be it known that I, ISAACQJ. PARKER, of BuffaloV Grove, in the county of Buchanan, aud State of Iowa, have invented a new and useful-Improvement'in Machines for Driving FencePosts; and I do herebydeclare that the following is a. full, clear, and 'exact description thereof, which will enable others-'skilled in the art to make and use thesame, reference being had to the accompanying drawings, forming part of this speciication, in whichr Figure l is a side'view of my invention.'

Figure 2 is aplan or top view of the same.

Similar letters ofy reference indicate like parts.

This invention relates to a new and useful machine for driving fence-posts, aud is designed to be placed upon a wagon, or-any suitable frame mounted on wheels, the device being constructed in such a manner that it may be operated whileon the wagon, and drawn from place to place where the posts are to be driven.

In the accompanying sheet of drawings A represents a frame, of rectangular or other suitable form, constructed iu such a manner that it will serve as a. proper base for the machine, and B is a standard or upright, which is framed into A, and has a pulley, a, inserted in it, nearits upper part.

C is a shorter standard or upright, framed into the base, near its rear part, and having the rear end of a hammer-shaft, D, secured in it by a pivot or pin,`b. v

E is the hammer, secured en the free or disengaged end of the shaft D.

F is a bar, one end of which is fittedin the upright, C. This bar haslau oblong slot, b', made through it for a pin, c, on which the bar F works, to pass through, and G is a lever, which passes through a mortise in.bar F, and is pivoted to an arm, d, on frame A.l i

n This bar F, near'its outer end, is connected to a rope, H, which passes over the pulley a, and extends down, and is attached to a Windlass, I, in'the frame A. i

`In the front part of the frame A there are secured the rollers J J', one of which, J, works in fixed bear- `ings, and the other one, J', having one of its journals, e, arranged so that` it may be adjusted to increase or diminish the space between the rollers to correspond to the diameter ot' the stakes to be driven.

These rollers serve to hold the stakes while they are being driven into the ground. The hammer is raised by shoving, through the medium of lever Gr, the frontend ofbar F into a notch,f, in the hammer, the windlass I being then turned, and the bar F raised, and' the hammer with it. When the hammer is fully raised, the bar F is shoved bach free from or out of the notch j', in the hammer, and the -latter falls upon the stake and drives it into theV ground, the operation being repeated until the stake is driven the desired distance into theV ground. The roller J is then released at one end, so that it may clear the driven post, and the wagon is moved or drawn along to the place where the hext post is to be driven, the post being set'in position and secured between the rollers J J', and the hammer operated as before. V

This device may be constructed at a small cost, and will effect a great saving in time, in erecting post-andrail, and'postand-board, and picket-fences.

Having thus described my invention, I claim as new,A and desire to secure by Letters Patent- 11 The hammer-shaft D, in combination with the sliding bar F and the windlass I, the former being connected to the latter by a rope, II, passing over a pulley, a, and all arranged to operate in the manner substauf tially as and for thepurpose set forth. V

2. I further claim the xedand adjustable rollers J J', in combination with the hammer-shaft D and the bar F, substantially as and for the purpose specified. g

The above specification of my invention signed by me, this twenty-first day of May, 1868.

' ISAAC J. PARKER.

Witnesses:

MILTON PARKER, ALBERT Tanner. 

